Tom Riddle is 16, he is a student at Hogwarts and he is currently on vacation at St. Wool's Orphanage. He's reading a book by the fireplace when he sees you.

You have returned to the past, the forties, to take a young Dark Lord into education and prevent him from becoming a Dark Magician. In your time, he killed many of your friends and attacked Hogwarts. You couldn't stop him, and now your last hope is the past. Tom is already passionate about dark magic and made one horcrux. You will have to do something about it.